A heavy-duty drill can make all the difference in the world in your work. The extra engineering and care in manufacture will help you to drill cleaner, more accurate holes, and many more of them at that. All the Drills we carry, Sets, Individuals, Jobber Length and Short Length, are made from High Speed Steel with a 135° self-centering point. Special point and surface treatments (Maxi-Set not treated) give easier, more wear-resistant drilling of the tough steels encountered in the gun shop.
Big Book Catalog, Issue:70, Page:447